﻿/*
// <copyright>
// dotNetRDF is free and open source software licensed under the MIT License
// -------------------------------------------------------------------------
// 
// Copyright (c) 2009-2017 dotNetRDF Project (http://dotnetrdf.org/)
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is furnished
// to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// </copyright>
*/

using System.Collections.Generic;
using Microsoft.Extensions.Configuration;
using Xunit;

namespace VDS.RDF.Configuration
{
    public class ConfigurationExtensionsSettingsProviderTests
    {
        private readonly ConfigurationExtensionsSettingsProvider _provider;

        public ConfigurationExtensionsSettingsProviderTests()
        {
            var settings = new Dictionary<string, string>
            {
                {"key", "value"}
            };
            var configurationRoot = new ConfigurationBuilder()
                .AddInMemoryCollection(settings)
                .Build();

            _provider = new ConfigurationExtensionsSettingsProvider(configurationRoot);
        }

        [Fact]
        public void GettingSetting_ReturnsValueFromSource()
        {
            // when
            var setting = _provider.GetSetting("key");

            // then
            Assert.Equal("value", setting);
        }

        [Fact]
        public void GettingSetting_ReturnsNull_WhenItIsNotPresentInSources()
        {
            // when
            var setting = _provider.GetSetting("no-such-key");

            // then
            Assert.Null(setting);
        }
    }
}